Create graphics that look correct when output to video
In your graphics application, create a frame size that’s the square pixel equivalent of the video frame size you’re using.
For example, if you’re working in DV-PAL with a nonsquare video frame size of 720 x 576, your graphic should have a square pixel frame size of 768 x 576. If you’re working in Broadcast HD 1080 with a square frame size of 1920 x 1080, your graphic should have a square pixel frame size of 1920 x 1080.
Create the graphic.
Do one of the following:
In your graphics application, rescale the graphic from the square frame size used to create it to the nonsquare equivalent used in Motion.
Save your image as is.
In your Motion project, select the object in the Media list of the Project pane, open the Media Inspector, then choose the correct aspect ratio from the Pixel Aspect Ratio pop-up menu.